DefaultRepositorySystemSession session = new DefaultRepositorySystemSession(h -> false); // no close handle

        // for technical reasons we cannot throw here, even if delegate does cancel transfer
        listener.transferInitiated(event(session, resource, TransferEvent.EventType.INITIATED));

        Thread.sleep(500); // to make sure queue is processed, cancellation applied

            String artifactId,
            String classifier,
            String extension,
            String version,
            String message) {
        this.artifact = Objects.requireNonNull(artifact, "artifact cannot be null");
        this.groupId = (groupId != null && !groupId.isEmpty()) ? groupId : null;
        this.artifactId = (artifactId != null && !artifactId.isEmpty()) ? artifactId : null;

  }

  private Absent() {}

  @Override
  public boolean isPresent() {
    return false;
  }

  @Override
  public T get() {
    throw new IllegalStateException("Optional.get() cannot be called on an absent value");
  }

  @Override
  public T or(T defaultValue) {
    return checkNotNull(defaultValue, "use Optional.orNull() instead of Optional.or(null)");
  }

     * @return <code>true</code> when it is possible to resume the build, <code>false</code> otherwise.
     */
    boolean canResume();

    /**
     * Indicate that the build can or cannot be resumed by a second invocation of Maven.
     * @param canResume <code>true</code> when it is possible to resume the build, <code>false</code> otherwise.
     * @see BuildResumptionDataRepository
     * @see #canResume()

import org.codehaus.plexus.component.repository.exception.ComponentRepositoryException;
import org.codehaus.plexus.configuration.PlexusConfigurationException;

/**
 * Exception which occurs to indicate that the plugin cannot be initialized due
 * to some deeper problem with Plexus. Context information includes the groupId,
 * artifactId, and version for the plugin; at times, the goal name for which

else
  export TF_VER_FULL="$(tfrun bazel run //tensorflow/tools/ci_build:calculate_full_version -- --wheel-type release)"
fi

# Note on gsutil commands:
# "gsutil cp" always "copies into". It cannot act on the contents of a directory
# and it does not seem possible to e.g. copy "gs://foo/bar" as anything other than
# "/path/bar". This script uses "gsutil rsync" instead, which acts on directory

     */
    public void add(final String target, final String replacement) {
        if (target == null || replacement == null) {
            throw new CrawlerSystemException("Target or replacement cannot be null.");
        }
        convertMap.put(target, replacement);
    }

    /**
     * Sets the conversion map.
     * @param convertMap The conversion map to set.
     */

        // Then
        assertNotNull(dfsRootEnum, "The MsrpcDfsRootEnum object should not be null.");
        // The server name is stored in a protected field without a public getter, so we cannot directly test it.
        // We can test the public fields that are set.
        assertEquals(200, dfsRootEnum.level, "The level should be initialized to 200.");

    @Override
    public void merge(ArtifactMetadata metadata) {
        ProjectArtifactMetadata m = (ProjectArtifactMetadata) metadata;
        if (!m.file.equals(file)) {
            throw new IllegalStateException("Cannot add two different pieces of metadata for: " + getKey());
        }
    }

    @Override
    public void merge(org.apache.maven.repository.legacy.metadata.ArtifactMetadata metadata) {

        return cache.get(key);
    }

    @Override
    public CacheRecord put(Key key, ClassRealm projectRealm, DependencyFilter extensionArtifactFilter) {
        Objects.requireNonNull(projectRealm, "projectRealm cannot be null");

        if (cache.containsKey(key)) {
            throw new IllegalStateException("Duplicate project realm for extensions " + key);
        }